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March 8, 1932. p. GANLER 1,848,707

DEVICE FOR INTRODUCING FOLDING BOXES IN PACKING MACHINES Filed May 7, 1930 s Sheets-Sheet 1 Pau S' HAVEN-TOR;

Mtrrney.

March 8, 1932. P. GANGLER 1,848,707

DEVICE FOR INTRODUCING FOLDING BOXES IN PACKING MACHINES Filed May '7, 1930 3 Sheets-Sheet 2 Ewl elonger INVENTO'7 March 8, 1932. P. GANGLER 1,848,707

DEVICE FOR INTRODUCING FOLDING BOXES IN PACKING MACHINES Filed May '7, 1950 3 Sheets-Sheet 3 Fig.3

Paul GaflQ INVENTOR;

6; Attorney.

Patented Mar. i932 stares earner caries EAUL GMTGLER, F ESSLING'EQT, GERMANY, ASSIGNOR TO THE FIRM FR. HESSEE, MASK)EINENFABRIK-AKTIENGE$EEJLS/CFLAFT, 0F STUTTG-ART-CAMISTATT, swarm DEVICE F03, INWDUOING- FOLDING- BOXES IN PACKING} MACHENEQ Application filed May 7, 1930, Serial No.

My invention relates to machines for packing goods in folding boxes. In machines of this kind it is known to withdraw the folding boxes in their flattened state individually from a vertical pile of flattened folding boxes,

'for instance by ejecting or pushing oif the lowermost folding box of said vertical pile, to spread open the withdrawn box and to convey it into the feeding device of the packing machine. Such devices have in operation the considerable drawback that in case of a large number of flat folding boxes pla ed in the vertical pile the weight of the piled up w folding boxes on the lowest folding box he- 5 comes so great thatv in consequence of the bending o the lowest box caused by said great weight a reliable withdrawal of this box from the pile can no longer be relied upon.

In order to avoid this drawback the pile consisting of flat folding boxes is according to my invention arranged with its longitudinal axis horizontally on a horizontal uide track on' which the feed of the folding. oxes takes place in correspondence with this withdrawal. Due to this horizontal arrangement the said unfavourable effect of the own weight of the pile is eliminated for each withdrawal of a folding box, and the feeding device may in a simple manner he so designed that it exerts at all times a constant pressure on the folding box to be withdrawn, more particularly by using for said feeding device a weight acting on a feeding plate or a similar feed member through the agency of a draw rope or the like.

An embodiment of my invention is by way of example diagrammatically illustrated in the accompanying drawings.

In the drawings represents:

Fig. 1, an elevation of the feeding device,

Fig. 2, a plan, and

, Fig. 3, a front-elevation viewed from the left of Fig. 1.

As particularly clearly shown in Fig. 1,'the

flattened folding boxes are arranged in a horizontal pile A, and the arrangement is such that the pile is located on a horizontal guide track and is adapted to be advanced in correspondence with the withdrawal of boxes. In

459,582, and in Germany June 3, 1929.

contrast with the vertical pile arrangement the influence of the weight of the pile on the moving forward of the boxes in the pile and on the withdrawal of the folding boxes from the pile is thus eliminated.

The horizontal guide track for the pile of boxes A is formed by the guide angles 4 and 4' which by means of two pairs of angle pieces 4a and 4b are fixed to two transverse members 3, 3. The latter are by means of their so eyes 3' and 3" mounted on the rods 2, 2' which are supported by the pedestal or pillar 1 of the machine frame.

In order to render the feed of the horizontal pile A as frictionless as possible and thereno fore easy, there is provided for the pile A a support which is freely movable in unison with the said feed. This support consists in the illustrated embodiment of two endless belts 10 and 10' which run at both ends of the feed track over loosely rotatable pulleys 7, 7' and 9, 9 respectively, and which are intermediate these pulleys supported by loosely rotatable rollers 14 and 14. respectively.

For obtaining a uniform feed of the pile 7 on the said belts 10, 10' and between the said lateral guide angles 4, 4, a weight 24 is provided in the present embodiment of the device, said weight being suspended from a rope 21 by means of a pulley 25. The rope which so is at its one end attached to the fixed hook 23, runs over the pulley 22 and is with its other end secured at 20 to the feed plate 15. To guide this plate 15 and to guard it against tilting and edging .during the feed, rollers 15a and 155 which run along the angle irons 4, 4 are journaled upon the plate, and rollers 18, 1 8 are journaled in the double-angle member 16 mounted on the plate 15 said rollers 18, 18 embracing a rail 19 which is rigid- 9c 1y connected to and a part of the stationary guide track. In this way, the pile A is fed forward under as little friction as possible and under a constant pressure by the weight 24 through the agency of the feed plate 15 in correspondence with the withdrawal of the boxes at the leading end of the horizontal pile A, the folding box in front at the time abutting against the stop rails 29, 30. The rail 30 is attached to the angle 31 of the arm in front at the time as well as for spreading it open and introducing it into the boxes 70 or into any other suitable conveying device of a packing machine-of any desired type, there is provided a knife-like shaped member 35. This member is adapted to be reciprocated' transversely to the direction of feed of the pile by means of a rail 36 in a suitable slide track of a slide 37. The slide 37 is in its turn adapted to be reciprocated with itseyes 37, 37" upon rods 43 and 43' of a pedestal 50, which is secured to the machine frame, in the longitudinal direction of the feed of the pile. The displacement of the rail 36 in the slide 37 is produced by means of the double-armed-lever 41 which is rotatably journaled at 49 in the said pedestal and pulled by means of a spring 51 with an anti-friction bowl 48 against a suitable cam (not shown) on the drivingshaft 52 of the packing ma-v chine. The lever 41 is at its upper end at .41 and 41" bifurcated into two bearings in which is journaled by means of the bolt 40 a slide block 39 extending between the said two bearings. The slide block 39 engages the aw 38 mounted on the rail 36. In this way, the said iaw 38 remains in constant engagement with the said slide block 39 during the horizontal reciprocation of the slide 37 in the axial direction of the feed of the pile.

The said horizontal reciprocation of the slide 37 alongthe'rods 43 and 43' is effected by means of a lever 46 pivotally mounted on the bolt 47 at the pedestal 50 and adapted to be operated by any suitable and known cam or eccentric gear. The lever 46 engages an eve 44, of the slide 37 by means of a link member 45. The mode of operation is as follows: I

In the position of the parts shown in Fig. 2. the knife-like rail 35 is pushed between the laterally projecting flaps of the front folding box abutting against the stop ledges 29. 30,

' bv the displacement of the rail 36 in the slide 37. During the further penetration of the rail 35. the folding box is first pulled out of the rail 29 towards the right while it is still lightly detained at its upper edge by the rail 30 in order to ensure a reliable bending of the folding edge a f Fig. 1). Simultaneously the slide 37 is moved towards the right on the rods 43, 43' by its operating device described. Therebv the folding box is carried along by the rail 35 and conveyed into the adiacent receptacle 70 of the conveying mechanism of the packing machine, the box being completelv spread apart by entering the said receptacle 70. Now'the spreading rail 35 is withdrawn from the box by an outward displacement of the rail 36 in the slide 37 and returned into its initial position shown in Fig, 2 by moving the slide 37 on the uide bolts 43, 43 towards the left. After t e withdrawal of the folding box, the. horizontal pile A has been fed forward upon the belts 10 and 10' between the lateral guide rails 4, 4' by the weight 24, the rope 21 and the plate 15 to such an extent that now the next folding box will abut against the stop rails 29, 30 and can now be withdrawn from the pile by the knife 35 in the manner described and introduced into the respective conveyor receptacle of the packing machine.

To prevent that the spread out folding box introduced into the receptacle 70-may fold together again in the receptacle or jump out of it or disturb the operation of the machine in any other way due to its tendency to return into its fiat state after it has been spread open by the knife blade 35, the box is detained 'in the receptacle by a device which after the introduction of the box places itself against the open side of the receptacle or is moved in front of it. This device consists in the case illustrated of vertically reciprocating pins 66, 66' or similar members which rior to the introduction of the box are raise and after the introduction arelowered in front of the box. For this purpose, a shaft 61 which carries a lever at its one end is journaled in a pedestal 71 fixed to the machine frame. The lever 60 engages a rod 64 adapted to reciprocate vertically in a stationary guide 63, by means of a connecting link 62. The said rod 64 carries at its lower end a transverse member 65 to which the said two pins 66, 66' are secured. The necessary vertical reciprocating motion is imparted to these ins 66, 66' by the said linkwork 64, 62, 60 an by an eccentric rod 68 which engages a lever 67 mounted on the other end of the shaft 61 through the agency of any suitable and known eccentric drive not shown. On the shaft 61 there is also mounted a. lever 69 with a so called creasing ledge 72 attached to it.

4 As soonas the spread out folding or col lapsible box has been pushed into the respective receptacle at the introducing station, the pins66, .66 are moved downwards and support the box at its outer surface. During the further advance of the receptacle 70 in the direction of the arrow in Fig. 1, the pins remain so long in this bottom position until the receptacle has reached the next position. During this advance, the further guidance is taken. over by rails 74 which engage recesses in the receptacles 70, as shown. As soon as a receptacle 7 0 has reached the top position, the pins 66, 66 are withdrawn by a suitable rotation of the shaft 61, and simultaneously the lever 69 with the creasing ledge 72 is swung against the upper wall of the box and produces towards the left-hand folding edge of the box a bend or crease" of about 45 while the two right-hand folding edges of the box Ill 30 comprising conveying receptacles and means are at the same time bent in the opposite direction to that in which they are bent when the boxes were flattened or folded together. After the creasing member 7 2 has ascended again, the box returns into its rectangular position and remains in it as the adverse strain conditions are now eliminated.

I claim as my invention': 1. A machine for packing folding boxes w comprising conveying receptacles and means for withdrawing the said boxes individually from a pile of flattened boxes and feeding them to the said receptacles, a horizontal guide track comprising two lateral guide rails and adapted to support the said pile arranged with its longitudinal axis in a horizontal position on the track, and means for advancing said horizontal pile on said horizontal guide track towards the said withdrawing means, said advancing means comprising a vertical feed plate, rollers mounted at both sides of this plate and adapted to run on the two lateral rails of the guide track, another stationary guide rail secured to and beneath the guide track, and other rollers mounted on the feed plate and embracing said stationary guide rail from the top and from the bottom. 2. A. machine for packing folding boxes forwithdrawing the said boxes individually from a pile of flattened boxes, and feeding them to the said receptacles, 'a horizontal guide track consisting of endless, freely movable belts adapted to support the said pile arranged with its longitudinal axis in a horizontal position, and means for advancing said horizontal pile on said horizontal guide track towards the said withdrawing means.

40 3. A machine for packing folding boxes comprising conveying receptacles, means for withdrawing the saidboxes individuallyfrom a pile of flattened boxes and feeding them to the said receptacles, and a horizontal guide track adapted to support the said pile arranged with its longitudinal axis in a horizontal position on the track, said flattened folding boxes being disposed on said horizontal guide track so as to rest with their longer edges upon the track and to project with their end flaps freely on both sides of the track.

In testimony whereof I have afiixed my signature. PAUL GANGLER. 

